1 /*
2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)socket.h 8.4 (Berkeley) 2/21/94
30 * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
31 */
32
33 #ifndef _SYS_SOCKET_H_
34 #define _SYS_SOCKET_H_
35
36 #include <sys/cdefs.h>
37 #include <sys/_iovec.h>
38
39 #include <machine/alignbytes.h>
40 #include <machine/stdint.h>
41
42 #ifndef _SIZE_T_DECLARED
43 typedef __size_t size_t;
44 #define _SIZE_T_DECLARED
45 #endif
46
47 #ifndef _SSIZE_T_DECLARED
48 typedef __ssize_t ssize_t;
49 #define _SSIZE_T_DECLARED
50 #endif
51
52 #if __BSD_VISIBLE
53 #ifndef _GID_T_DECLARED
54 typedef __uint32_t gid_t; /* group id */
55 #define _GID_T_DECLARED
56 #endif
57
58 #ifndef _UID_T_DECLARED
59 typedef __uint32_t uid_t; /* user id */
60 #define _UID_T_DECLARED
61 #endif
62
63 #ifndef _OFF_T_DECLARED
64 typedef __off_t off_t; /* file offset */
65 #define _OFF_T_DECLARED
66 #endif
67 #endif /* __BSD_VISIBLE */
68
69 /*
70 * Definitions related to sockets: types, address families, options.
71 */
72
73 /*
74 * Data types.
75 */
76 #ifndef _SA_FAMILY_T_DECLARED
77 typedef __uint8_t sa_family_t;
78 #define _SA_FAMILY_T_DECLARED
79 #endif
80
81 #ifndef _SOCKLEN_T_DECLARED
82 #define _SOCKLEN_T_DECLARED
83 typedef __socklen_t socklen_t;
84 #endif
85
86 /*
87 * Types
88 */
89 #define SOCK_STREAM 1 /* stream socket */
90 #define SOCK_DGRAM 2 /* datagram socket */
91 #define SOCK_RAW 3 /* raw-protocol interface */
92 #if __BSD_VISIBLE
93 #define SOCK_RDM 4 /* reliably-delivered message */
94 #endif
95 #define SOCK_SEQPACKET 5 /* sequenced packet stream */
96
97 #if __BSD_VISIBLE
98 /*
99 * Creation flags, OR'ed into socket() and socketpair() type argument.
100 */
101 #define SOCK_CLOEXEC 0x10000000
102 #define SOCK_NONBLOCK 0x20000000
103 #ifdef _KERNEL
104 /*
105 * For kern_accept(): don't inherit FNONBLOCK or FASYNC.
106 */
107 #define SOCK_KERN_NOINHERIT 0x00100000
108 #endif
109 #endif
110
111 /*
112 * Option flags per-socket.
113 */
114 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
115 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
116 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
117 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
118 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
119 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
120 #if __BSD_VISIBLE
121 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
122 #endif
123 #define SO_LINGER 0x0080 /* linger on close if data present */
124 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
125 #if __BSD_VISIBLE
126 #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
127 #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
128 #define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */
129 #define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */
130 #define SO_RERROR 0x2000 /* Keep track of receive errors */
131 #define SO_PASSCRED 0x4000 /* receive credentials */
132 #endif
133
134 /*
135 * Additional options, not kept in so_options.
136 */
137 #define SO_SNDBUF 0x1001 /* send buffer size */
138 #define SO_RCVBUF 0x1002 /* receive buffer size */
139 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
140 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
141 #define SO_SNDTIMEO 0x1005 /* send timeout */
142 #define SO_RCVTIMEO 0x1006 /* receive timeout */
143 #define SO_ERROR 0x1007 /* get error status and clear */
144 #define SO_TYPE 0x1008 /* get socket type */
145 #if __BSD_VISIBLE
146 /* 0x1009 reserved for FreeBSD compat */
147 #define SO_SNDSPACE 0x100a /* get appr. send buffer free space */
148 /* 0x1010 ~ 0x1014 reserved for FreeBSD compat */
149 #define SO_USER_COOKIE 0x1015 /* user cookie */
150 /* 0x1016 ~ 0x102f reserved for FreeBSD compat */
151 #define SO_CPUHINT 0x1030 /* get socket's owner cpuid hint */
152 #endif
153
154 /*
155 * Structure used for manipulating linger option.
156 */
157 struct linger {
158 int l_onoff; /* option on/off */
159 int l_linger; /* linger time */
160 };
161
162 #if __BSD_VISIBLE
163 struct accept_filter_arg {
164 char af_name[16];
165 char af_arg[256-16];
166 };
167 #endif
168
169 /*
170 * Level number for (get/set)sockopt() to apply to socket itself.
171 */
172 #define SOL_SOCKET 0xffff /* options for socket level */
173
174 /*
175 * Address families.
176 */
177 #define AF_UNSPEC 0 /* unspecified */
178 #define AF_UNIX 1 /* local to host (pipes, portals) */
179 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
180 #define AF_INET6 28 /* IPv6 */
181 #if __BSD_VISIBLE
182 #define AF_LOCAL AF_UNIX
183 #define AF_IMPLINK 3 /* arpanet imp addresses */
184 #define AF_PUP 4 /* pup protocols: e.g. BSP */
185 #define AF_CHAOS 5 /* mit CHAOS protocols */
186 #define AF_NETBIOS 6 /* SMB protocols */
187 #define AF_ISO 7 /* ISO protocols */
188 #define AF_OSI AF_ISO
189 #define AF_ECMA 8 /* European computer manufacturers */
190 #define AF_DATAKIT 9 /* datakit protocols */
191 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */
192 #define AF_SNA 11 /* IBM SNA */
193 #define AF_DECnet 12 /* DECnet */
194 #define AF_DLI 13 /* DEC Direct data link interface */
195 #define AF_LAT 14 /* LAT */
196 #define AF_HYLINK 15 /* NSC Hyperchannel */
197 #define AF_APPLETALK 16 /* Apple Talk */
198 #define AF_ROUTE 17 /* Internal Routing Protocol */
199 #define AF_LINK 18 /* Link layer interface */
200 #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
201 #define AF_COIP 20 /* connection-oriented IP, aka ST II */
202 #define AF_CNT 21 /* Computer Network Technology */
203 #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
204 #define AF_IPX 23 /* Novell Internet Protocol */
205 #define AF_SIP 24 /* Simple Internet Protocol */
206 #define pseudo_AF_PIP 25 /* Help Identify PIP packets */
207 #define AF_ISDN 26 /* Integrated Services Digital Network*/
208 #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
209 #define pseudo_AF_KEY 27 /* Internal key-management function */
210 #define AF_NATM 29 /* native ATM access */
211 #define AF_ATM 30 /* ATM */
212 #define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers
213 * in interface output routine
214 */
215 #define AF_NETGRAPH 32 /* Netgraph sockets */
216 #define AF_BLUETOOTH 33 /* Bluetooth */
217 #define AF_MPLS 34 /* Multi-Protocol Label Switching */
218 #define AF_IEEE80211 35 /* IEEE 802.11 protocol */
219 #define AF_ARP 36 /* (rev.) addr. res. prot. (RFC 826) */
220
221 #define AF_MAX 37
222 #endif /* __BSD_VISIBLE */
223
224 /*
225 * Structure used by kernel to store most
226 * addresses.
227 */
228 struct sockaddr {
229 __uint8_t sa_len; /* total length */
230 sa_family_t sa_family; /* address family */
231 char sa_data[14]; /* actually longer; address value */
232 };
233 #if __BSD_VISIBLE
234 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */
235 #endif
236
237 #ifdef _KERNEL
238
239 #ifndef _SYS_LIBKERN_H_
240 #include <sys/libkern.h> /* for bcmp() */
241 #endif
242
243 static __inline boolean_t
sa_equal(const struct sockaddr * a1,const struct sockaddr * a2)244 sa_equal(const struct sockaddr *a1, const struct sockaddr *a2)
245 {
246 return (bcmp(a1, a2, a1->sa_len) == 0);
247 }
248 #endif
249
250 #if __BSD_VISIBLE
251 /*
252 * Structure used by kernel to pass protocol
253 * information in raw sockets.
254 */
255 struct sockproto {
256 __uint16_t sp_family; /* address family */
257 __uint16_t sp_protocol; /* protocol */
258 };
259 #endif /* __BSD_VISIBLE */
260
261 /*
262 * RFC 2553: protocol-independent placeholder for socket addresses
263 */
264 #define _SS_MAXSIZE 128
265 #define _SS_ALIGNSIZE (sizeof(__int64_t))
266 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) - sizeof(sa_family_t))
267 #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) - sizeof(sa_family_t) - \
268 _SS_PAD1SIZE - _SS_ALIGNSIZE)
269
270 struct sockaddr_storage {
271 __uint8_t ss_len; /* address length */
272 sa_family_t ss_family; /* address family */
273 char __ss_pad1[_SS_PAD1SIZE];
274 __int64_t __ss_align; /* force desired structure storage alignment */
275 char __ss_pad2[_SS_PAD2SIZE];
276 };
277
278 #if __BSD_VISIBLE
279 /*
280 * Protocol families, same as address families for now.
281 */
282 #define PF_UNSPEC AF_UNSPEC
283 #define PF_LOCAL AF_LOCAL
284 #define PF_UNIX PF_LOCAL /* backward compatibility */
285 #define PF_INET AF_INET
286 #define PF_IMPLINK AF_IMPLINK
287 #define PF_PUP AF_PUP
288 #define PF_CHAOS AF_CHAOS
289 #define PF_NETBIOS AF_NETBIOS
290 #define PF_ISO AF_ISO
291 #define PF_OSI AF_ISO
292 #define PF_ECMA AF_ECMA
293 #define PF_DATAKIT AF_DATAKIT
294 #define PF_CCITT AF_CCITT
295 #define PF_SNA AF_SNA
296 #define PF_DECnet AF_DECnet
297 #define PF_DLI AF_DLI
298 #define PF_LAT AF_LAT
299 #define PF_HYLINK AF_HYLINK
300 #define PF_APPLETALK AF_APPLETALK
301 #define PF_ROUTE AF_ROUTE
302 #define PF_LINK AF_LINK
303 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
304 #define PF_COIP AF_COIP
305 #define PF_CNT AF_CNT
306 #define PF_SIP AF_SIP
307 #define PF_IPX AF_IPX /* same format as AF_NS */
308 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
309 #define PF_PIP pseudo_AF_PIP
310 #define PF_ISDN AF_ISDN
311 #define PF_KEY pseudo_AF_KEY
312 #define PF_INET6 AF_INET6
313 #define PF_NATM AF_NATM
314 #define PF_ATM AF_ATM
315 #define PF_NETGRAPH AF_NETGRAPH
316 #define PF_BLUETOOTH AF_BLUETOOTH
317 #define PF_ARP AF_ARP
318
319 #define PF_MAX AF_MAX
320
321 /*
322 * Definitions for network related sysctl, CTL_NET.
323 *
324 * Second level is protocol family.
325 * Third level is protocol number.
326 *
327 * Further levels are defined by the individual families below.
328 */
329 #define NET_MAXID AF_MAX
330
331 #define CTL_NET_NAMES { \
332 { 0, 0 }, \
333 { "unix", CTLTYPE_NODE }, \
334 { "inet", CTLTYPE_NODE }, \
335 { "implink", CTLTYPE_NODE }, \
336 { "pup", CTLTYPE_NODE }, \
337 { "chaos", CTLTYPE_NODE }, \
338 { "xerox_ns", CTLTYPE_NODE }, \
339 { "iso", CTLTYPE_NODE }, \
340 { "emca", CTLTYPE_NODE }, \
341 { "datakit", CTLTYPE_NODE }, \
342 { "ccitt", CTLTYPE_NODE }, \
343 { "ibm_sna", CTLTYPE_NODE }, \
344 { "decnet", CTLTYPE_NODE }, \
345 { "dec_dli", CTLTYPE_NODE }, \
346 { "lat", CTLTYPE_NODE }, \
347 { "hylink", CTLTYPE_NODE }, \
348 { "appletalk", CTLTYPE_NODE }, \
349 { "route", CTLTYPE_NODE }, \
350 { "link_layer", CTLTYPE_NODE }, \
351 { "xtp", CTLTYPE_NODE }, \
352 { "coip", CTLTYPE_NODE }, \
353 { "cnt", CTLTYPE_NODE }, \
354 { "rtip", CTLTYPE_NODE }, \
355 { "ipx", CTLTYPE_NODE }, \
356 { "sip", CTLTYPE_NODE }, \
357 { "pip", CTLTYPE_NODE }, \
358 { "isdn", CTLTYPE_NODE }, \
359 { "key", CTLTYPE_NODE }, \
360 { "inet6", CTLTYPE_NODE }, \
361 { "natm", CTLTYPE_NODE }, \
362 { "atm", CTLTYPE_NODE }, \
363 { "hdrcomplete", CTLTYPE_NODE }, \
364 { "netgraph", CTLTYPE_NODE }, \
365 { "bluetooth", CTLTYPE_NODE}, \
366 }
367
368 /*
369 * PF_ROUTE - Routing table
370 *
371 * Three additional levels are defined:
372 * Fourth: address family, 0 is wildcard
373 * Fifth: type of info, defined below
374 * Sixth: flag(s) to mask with for NET_RT_FLAGS
375 */
376 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
377 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
378 #define NET_RT_IFLIST 3 /* survey interface list */
379 #define NET_RT_MAXID 4
380
381 #define CTL_NET_RT_NAMES { \
382 { 0, 0 }, \
383 { "dump", CTLTYPE_STRUCT }, \
384 { "flags", CTLTYPE_STRUCT }, \
385 { "iflist", CTLTYPE_STRUCT }, \
386 }
387 #endif /* __BSD_VISIBLE */
388
389 /*
390 * Maximum queue length specifiable by listen.
391 */
392 #define SOMAXCONN 128
393
394 #if __BSD_VISIBLE
395 /*
396 * Maximum setsockopt buffer size
397 */
398 #define SOMAXOPT_SIZE 65536
399 #define SOMAXOPT_SIZE0 (32 * 1024 * 1024) /* for root getsockopt */
400 #endif
401
402 /*
403 * Message header for recvmsg and sendmsg calls.
404 * Used value-result for recvmsg, value only for sendmsg.
405 */
406 struct msghdr {
407 void *msg_name; /* optional address */
408 socklen_t msg_namelen; /* size of address */
409 struct iovec *msg_iov; /* scatter/gather array */
410 int msg_iovlen; /* # elements in msg_iov */
411 void *msg_control; /* ancillary data, see below */
412 socklen_t msg_controllen; /* ancillary data buffer len */
413 int msg_flags; /* flags on received message */
414 };
415
416 #define MSG_OOB 0x00000001 /* process out-of-band data */
417 #define MSG_PEEK 0x00000002 /* peek at incoming message */
418 #define MSG_DONTROUTE 0x00000004 /* send without using routing tables */
419 #define MSG_EOR 0x00000008 /* data completes record */
420 #define MSG_TRUNC 0x00000010 /* data discarded before delivery */
421 #define MSG_CTRUNC 0x00000020 /* control data lost before delivery */
422 #define MSG_WAITALL 0x00000040 /* wait for full request or error */
423 #if __BSD_VISIBLE
424 #define MSG_DONTWAIT 0x00000080 /* this message should be nonblocking */
425 #define MSG_EOF 0x00000100 /* data completes connection */
426 #define MSG_UNUSED09 0x00000200 /* was: notification message (SCTP) */
427 #endif
428 #define MSG_NOSIGNAL 0x00000400 /* No SIGPIPE to unconnected socket stream */
429 #if __BSD_VISIBLE
430 #define MSG_SYNC 0x00000800 /* No asynchronized pru_send */
431 #define MSG_CMSG_CLOEXEC 0x00001000 /* make received fds close-on-exec */
432 /* 0x2000 unused */
433 /* 0x4000 unused */
434 /* 0x8000 unused */
435 /*
436 * These override FIONBIO. MSG_FNONBLOCKING is functionally equivalent to
437 * MSG_DONTWAIT.
438 */
439 #define MSG_FBLOCKING 0x00010000 /* force blocking operation */
440 #define MSG_FNONBLOCKING 0x00020000 /* force non-blocking operation */
441 #define MSG_FMASK 0xFFFF0000 /* force mask */
442 #endif
443
444 /*
445 * Header for ancillary data objects in msg_control buffer.
446 * Used for additional information with/about a datagram
447 * not expressible by flags. The format is a sequence
448 * of message elements headed by cmsghdr structures.
449 */
450 struct cmsghdr {
451 socklen_t cmsg_len; /* data byte count, including hdr */
452 int cmsg_level; /* originating protocol */
453 int cmsg_type; /* protocol-specific type */
454 /* followed by u_char cmsg_data[]; */
455 };
456
457 #if __BSD_VISIBLE
458 /*
459 * While we may have more groups than this, the cmsgcred struct must
460 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow
461 * this.
462 */
463 #define CMGROUP_MAX 16
464
465 /*
466 * Credentials structure, used to verify the identity of a peer
467 * process that has sent us a message. This is allocated by the
468 * peer process but filled in by the kernel. This prevents the
469 * peer from lying about its identity. (Note that cmcred_groups[0]
470 * is the effective GID.)
471 */
472 struct cmsgcred {
473 __pid_t cmcred_pid; /* PID of sending process */
474 uid_t cmcred_uid; /* real UID of sending process */
475 uid_t cmcred_euid; /* effective UID of sending process */
476 gid_t cmcred_gid; /* real GID of sending process */
477 short cmcred_ngroups; /* number or groups */
478 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */
479 };
480
481 /* Alignment requirement for CMSG struct manipulation */
482 #define _CMSG_ALIGN(n) (((n) + __ALIGNBYTES) & ~__ALIGNBYTES)
483
484 #ifdef _KERNEL
485 #define CMSG_ALIGN(n) _CMSG_ALIGN(n)
486 #endif
487 #endif /* __BSD_VISIBLE */
488
489 /* given pointer to struct cmsghdr, return pointer to data */
490 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
491 _CMSG_ALIGN(sizeof(struct cmsghdr)))
492
493 /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
494 #define CMSG_NXTHDR(mhdr, cmsg) \
495 (((char *)(cmsg) + _CMSG_ALIGN((cmsg)->cmsg_len) + \
496 _CMSG_ALIGN(sizeof(struct cmsghdr)) > \
497 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
498 NULL : \
499 (struct cmsghdr *)((char *)(cmsg) + _CMSG_ALIGN((cmsg)->cmsg_len)))
500
501 /*
502 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
503 * an empty list for some reasons.
504 */
505 #define CMSG_FIRSTHDR(mhdr) \
506 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
507 (struct cmsghdr *)(mhdr)->msg_control : \
508 NULL)
509
510 #if __BSD_VISIBLE
511 /* RFC 2292 additions */
512
513 #define CMSG_SPACE(l) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + _CMSG_ALIGN(l))
514 #define CMSG_LEN(l) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
515 #endif
516
517 /* "Socket"-level control message types: */
518 #define SCM_RIGHTS 0x01 /* access rights (array of int) */
519 #if __BSD_VISIBLE
520 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
521 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */
522 #endif
523
524 /*
525 * howto arguments for shutdown(2), specified by Posix.1g.
526 */
527 #define SHUT_RD 0 /* shut down the reading side */
528 #define SHUT_WR 1 /* shut down the writing side */
529 #define SHUT_RDWR 2 /* shut down both sides */
530
531 #if __BSD_VISIBLE
532 /*
533 * sendfile(2) header/trailer struct
534 */
535 struct sf_hdtr {
536 struct iovec *headers; /* pointer to an array of header struct iovec's */
537 int hdr_cnt; /* number of header iovec's */
538 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
539 int trl_cnt; /* number of trailer iovec's */
540 };
541 #endif
542
543 #if !defined(_KERNEL) || defined(_KERNEL_VIRTUAL)
544
545 __BEGIN_DECLS
546 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
547 int bind(int, const struct sockaddr *, socklen_t);
548 int connect(int, const struct sockaddr *, socklen_t);
549 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
550 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
551 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
552 int listen(int, int);
553 ssize_t recv(int, void *, size_t, int);
554 ssize_t recvfrom(int, void * __restrict, size_t, int,
555 struct sockaddr * __restrict, socklen_t * __restrict);
556 ssize_t recvmsg(int, struct msghdr *, int);
557 ssize_t send(int, const void *, size_t, int);
558 ssize_t sendmsg(int, const struct msghdr *, int);
559 ssize_t sendto(int, const void *,
560 size_t, int, const struct sockaddr *, socklen_t);
561 int setsockopt(int, int, int, const void *, socklen_t);
562 int shutdown(int, int);
563 #if __POSIX_VISIBLE >= 200112
564 int sockatmark(int);
565 #endif
566 int socket(int, int, int);
567 int socketpair(int, int, int, int *);
568
569 #if __BSD_VISIBLE
570 int accept4(int, struct sockaddr *, socklen_t *, int);
571 int extaccept(int, int, struct sockaddr *, socklen_t *);
572 int extconnect(int, int, struct sockaddr *, socklen_t);
573 void pfctlinput(int, struct sockaddr *);
574 int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
575 #endif
576 __END_DECLS
577
578 #endif /* !_KERNEL || _KERNEL_VIRTUAL */
579
580 #endif /* !_SYS_SOCKET_H_ */
581